While simple in appearance, the design
of the centershaft has a significant amount of engineering put into it.

The construction is reinforced extruded
aluminum, which features dual reinforced lips on the underside, as well
as tapered ends for additional rigidity. The centershaft is very
lightweight, so weight is not added to reinforce the chassis.

Adjustable
Preload

A very common error when installing
tower bars,

It is always recommended to raise the
vehicle when installing so that the load of the shock uppermounts on the
shock towers is relieved and balanced out. When raised, and the tower
bar is placed onto the vehicle, the preload can be adjusted and set.
After it is bolted on and the car is lowered, each shock tower will have
equal load and will prevent independent movements of each shock.

This will provide an extremely noticeable
difference after installing. If a tower bar is installed on a car that
is not raised, great benefits will be missed.

Ultra
Durable Steel End Plates

The end plates are 100% steel for maximum
strength and durability. Commonly, extremely budget tower bars use
aluminum end plates, which are highly subject to deformity and breaking.

Tanabe's 100% steel end plates are
engineered for durability, so that the stress properly transfers to the
bar, and does not overstress the welds and mounting brackets.